EP1873896B1 - Stromumwandlungsvorrichtung, Wandler und unterbrechungsfreie Stromversorgung, die eine solche Vorrichtung umfasst - Google Patents

Stromumwandlungsvorrichtung, Wandler und unterbrechungsfreie Stromversorgung, die eine solche Vorrichtung umfasst Download PDF

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Publication number
EP1873896B1
EP1873896B1 EP07354031.2A EP07354031A EP1873896B1 EP 1873896 B1 EP1873896 B1 EP 1873896B1 EP 07354031 A EP07354031 A EP 07354031A EP 1873896 B1 EP1873896 B1 EP 1873896B1
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EP
European Patent Office
Prior art keywords
voltage
converting
rectifying
output
conversion
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Application number
EP07354031.2A
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English (en)
French (fr)
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EP1873896A3 (de
EP1873896A2 (de
Inventor
Miao-Xin c/o Schneider Electric Ind. SAS Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eaton Power Quality SAS
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Eaton Power Quality SAS
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • H02M7/10—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in series, e.g. for multiplication of voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac

Definitions

  • the conversion means of the conversion devices of the prior art generally make it possible to transfer electrical power between the input and the output of said devices, and to raise or lower the amplitude of the pulses of a primary pulsed voltage supplied. by the first conversion means, the elevation being a function of a transformation ratio of said transformation means.
  • Such conversion devices are often used in AC voltage DC converters, such as those used in an uninterruptible power supply or an inverter.
  • FIG. figure 1 An example of a device for converting a DC voltage, according to the prior art, is represented in FIG. figure 1 .
  • the conversion device shown can also be described as conversion device of the direct current - direct current type, in English direct current - direct current or abbreviated DC - DC. More specifically, the device for converting a DC voltage shown makes it possible to convert a DC voltage Vin into a pulsed and rectified output voltage Vout1.
  • the document US 4767978 shows the features of the preamble of claim 1.
  • the conversion device 1 comprises first conversion means 2, recovery means 3, and transformation means 4. Transformations 4 comprise, in turn, a transformer comprising at least one primary winding 5 connected to the first conversion means and at least one secondary winding 6 connected to the rectifying means.
  • the transformer 4 transfers all the power between the first conversion means 2 and the rectifying means 3.
  • the components first conversion means and rectifying means encapsulate all the power transferred. This can result in significant heat losses and may require the implementation of bulky heat dissipation means.
  • the invention aims to overcome the disadvantages of conversion devices of the prior art.
  • the invention relates to a device for converting a DC voltage according to claim 1.
  • the device according to the invention may comprise any of the features of claims 2 to 7.
  • the invention also relates to an uninterrupted power supply according to claim 9.
  • the device 51 for converting a continuous voltage Vin shown in FIG. figure 3 , includes elements already represented in figure 2 , that is to say the first conversion means 2, transformation means 4 connected to the first conversion means by the conductors 41 and 42, rectifying and superimposing means 52 connected to the transformation means by the conductors 55 and 56 and connected to the first conversion means by the conductors 53 and 54.
  • the transformation means 4 comprise a transformer comprising a primary winding 5 connected to the first conversion means by the conductors 41 and 42, and a secondary winding 6 connected to the rectifying and superposing means via the conductors 55 and 56.
  • FIG 3 also comprise rectifying means, namely diodes d1, d2, d3 and d4 connected in parallel and in reverse respectively on the transistors T1, T2, T3 and T4.
  • the diodes d1 to d4 protect the transistors and make the first conversion means reversible. The diodes thus make it possible to straighten a pulsed voltage having alternations of opposite sign.
  • the power transmitted by the conversion device represented in figure 1 according to the prior art is substantially equal to the product of the input DC voltage Vin by the input current, ie substantially equal to the product of the input DC voltage Vin by the output current Iout and by the transformation ratio R1.
  • the power stress can be determined for each of the components and for the transformer.
  • the power constraints of each component and the transformer are substantially equal to unity.
  • the maximum intensity Imax in the transistor T1 is substantially equal to the sum of the currents in the primary winding and in the secondary winding, that is to say substantially equal to the produces the sum of the transformation ratio and the unit (1 + R2) by the output current Iout.
  • the maximum intensity Imax in the transistor T4 is, for its part, substantially equal to the current in the primary winding, that is to say substantially equal to the product of the conversion ratio R2 by the output intensity Iout.
  • the maximum intensities Imax in the diodes D1 and D4, as well as the maximum intensity Imax in the secondary winding of the transformer, are substantially equal to the output intensity Iout.
  • the conversion device 51 can be represented by the circuit of the figure 5 , in which the elements that do not drive are shown in dashed lines. In this particular case, the diodes D1 and D4 do not conduct.
  • the conversion device of the invention can also be adapted to operate in voltage conditioner mode. According to this voltage conditioning mode, the conversion device makes it possible to convert a direct voltage Vin into a pulsed and rectified output voltage Vout1, so as to obtain, after filtering, corrected alternations of a sinusoidal voltage.
  • This operating mode can also be called pulse width modulation.
  • the first conversion means are, preferably, high frequency conversion means, that is to say having an operating frequency of the order of one kilohertz.
  • the device for converting a DC voltage according to the invention is generally of the "forward" type. In addition, it provides an almost continuous and alternating energy transfer.
  • Yet another advantage of the invention is to limit the heat losses by the components and by the transformer of the conversion device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Dc-Dc Converters (AREA)
  • Stand-By Power Supply Arrangements (AREA)

Claims (9)

  1. Vorrichtung zum Umwandeln (51) einer Gleichspannung (Vin), umfassend:
    - erste Umwandlungsmittel (2), um die Gleichspannung zu empfangen und um eine gepulste Primärspannung (V1) zu liefern, und
    - Transformationsmittel (4), die an die ersten Umwandlungsmitteln angeschlossen sind, um eine gepulste Sekundärspannung (V2) zu liefern,
    wobei die Vorrichtung Mittel zum Überlagern und zum Gleichrichten (52) der Primär- und Sekundärspannung umfasst, um eine gepulste und gleichgerichtete Ausgangsspannung (Vout1) zu liefern, wobei die Überlagerungs- und Gleichrichtmittel an die ersten Umwandlungsmittel und an den Ausgang der Transformationsmittel angeschlossen sind, dadurch gekennzeichnet, dass
    die Ausgangsspannung (Vout1) Pulse umfasst, die Amplituden besitzen, die im Wesentlichen der Summe der Amplituden der Pulse der gepulsten Primärspannung (V1) und der gepulsten Sekundärspannung (V2) gleich sind.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass wenigstens ein Leiter (53, 54) am Ausgang der ersten Umwandlungsmittel (2) an die Überlagerungs- und Gleichrichtmittel (52) angeschlossen ist.
  3. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die ersten Umwandlungsmittel (2) Niederfrequenz- oder Hochfrequenz-Umwandlungsmittel sind.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Transformationsmittel (4) wenigstens eine Primärwicklung (5) enthalten, die an den Ausgang der ersten Umwandlungsmittel (2) angeschlossen ist, und wenigstens eine Sekundärwicklung (6), die an den Eingang der Überlagerungs- und Gleichrichtmittel (52) angeschlossen ist, wobei die Wicklungsrichtung der Primärwicklung des Transformators die gleiche ist wie jene der Sekundärwicklung.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die ersten Umwandlungsmittel (2) zwei Schenkel (11, 12) mit Transistoren (T1, T2, T3 und T4) enthalten, an denen wenigstens zwei Transistoren in Reihe montiert sind, wobei der Mittelpunkt (13, 14) jedes Schenkels an den Eingang der Transformationsmittel (4) und an erste Eingänge der Überlagerungs- und Gleichrichtmittel (52) angeschlossen ist.
  6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Überlagerungs- und Gleichrichtmittel (52) zwei Schenkel (61, 62) mit Dioden (D1, D2, D3 und D4) enthalten, wobei jeder Schenkel wenigstens zwei Dioden enthält, die in der gleichen Richtung in Reihe montiert sind, wobei der Mittelpunkt (63, 64) jedes Schenkels an den Ausgang der Transformationsmittel (4) angeschlossen ist.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die einlaufenden Enden jedes Schenkels an den Ausgang der ersten Umwandlungsmittel (2) angeschlossen sind.
  8. Wandler (105) einer Gleichspannung (Vin) in Wechselspannung (Vout2), umfassend:
    - eine Vorrichtung zum Umwandeln (51) der Gleichspannung,
    - Filtermittel (131), die an die Umwandlungsvorrichtung angeschlossen sind, und
    - zweite Umwandlungsmittel (141) die an die Filtermittel angeschlossen sind,
    dadurch gekennzeichnet, dass die Umwandlungsvorrichtung eine Vorrichtung nach einem der Ansprüche 1 bis 7 ist, die eine gepulste Spannung von höherer Amplitude als der Gleichspannung (Vin) liefert, wobei die Filtermittel am Ausgang der Überlagerungs- und Gleichrichtmittel (52) der Umwandlungsvorrichtung (51) angeschlossen sind.
  9. Unterbrechungsfreie Stromversorgung, umfassend:
    - Mittel zum Speichern (104) der elektrischen Energie, und
    - einen Wandler (105) einer Gleichspannung (Vin) in Wechselspannung, der an die Speichermittel angeschlossen ist, wobei der Wandler eine Vorrichtung zum Umwandeln (51) der Gleichspannung (Vin) enthält,
    dadurch gekennzeichnet, dass die Vorrichtung zum Umwandeln (51) der Gleichspannung mit einer Vorrichtung nach einem der Ansprüche 1 bis 7 ist, wobei die Vorrichtung verwendet wird, um die von den Speichermitteln gelieferte Gleichspannung in gepulste Spannung von höherer Amplitude als der Gleichspannung (Vin) umzuwandeln.
EP07354031.2A 2006-06-29 2007-05-25 Stromumwandlungsvorrichtung, Wandler und unterbrechungsfreie Stromversorgung, die eine solche Vorrichtung umfasst Active EP1873896B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0605888A FR2903248B1 (fr) 2006-06-29 2006-06-29 Dispositif de conversion electrique,convertisseur et alimentation electrique sans interruption comportant un tel dispositif

Publications (3)

Publication Number Publication Date
EP1873896A2 EP1873896A2 (de) 2008-01-02
EP1873896A3 EP1873896A3 (de) 2016-06-29
EP1873896B1 true EP1873896B1 (de) 2018-01-10

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EP07354031.2A Active EP1873896B1 (de) 2006-06-29 2007-05-25 Stromumwandlungsvorrichtung, Wandler und unterbrechungsfreie Stromversorgung, die eine solche Vorrichtung umfasst

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US (1) US7656683B2 (de)
EP (1) EP1873896B1 (de)
CN (1) CN101106337B (de)
FR (1) FR2903248B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU197183U1 (ru) * 2019-06-27 2020-04-08 Кирилл Владимирович Селиванов Устройство инвертирования постоянного напряжения в переменное

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9520747B2 (en) * 2010-05-27 2016-12-13 Jageson Electronic Technology (Shenzhen) Co., Ltd. Two-input uninterruptible voltage converting device and method thereof
US9419524B2 (en) * 2013-06-26 2016-08-16 Tai-Her Yang Boost type direct current output control circuit device controlled by subpower

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4767978A (en) * 1986-04-25 1988-08-30 Halliburton Company Hybrid switching circuit in a DC to DC converter
US5610804A (en) * 1994-06-20 1997-03-11 Tdk Corporation Power supply with dual energy transfer circuits for power factor correction

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU197183U1 (ru) * 2019-06-27 2020-04-08 Кирилл Владимирович Селиванов Устройство инвертирования постоянного напряжения в переменное

Also Published As

Publication number Publication date
US7656683B2 (en) 2010-02-02
EP1873896A3 (de) 2016-06-29
CN101106337B (zh) 2012-05-30
FR2903248A1 (fr) 2008-01-04
FR2903248B1 (fr) 2008-08-15
EP1873896A2 (de) 2008-01-02
CN101106337A (zh) 2008-01-16
US20080002438A1 (en) 2008-01-03

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